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Nonvolatile Memory Effect in Organic Thin-Film Transistor Based on Aluminum Nanoparticle Floating Gate

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Chinese Physics Letters 2010年第1期27卷 275-278页

作者：王伟马东阁 State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun 130022 State Key Laboratory of Integrated Optoelectronics College of Electronic Science and Engineering Jilin University Changchun 130012 Graduate School of Chinese Academy of Sciences Beijing 100049

A nonvolatile memory effect was observed in an organic thin-film transistor by introducing a floating gate structure. The floating gate was composed of an Al film in a thickness of nanometers, which was thermally deposited on a SiO2 insulator and exposed to air to spontaneously oxidize. It can be seen that the transistors exhibit significant hysteresis behaviors and storage circles in current-voltage characteristics in the dark and under illumination, indicating that the transistors may act as a nonvolatile memory element. The operational mechanism is discussed in the cases of dark and illumination via charge trapping by the Al floating gate.

关键词： Gates Mental ability Beers Aluminium Films Packaging materials Darkness Lighting

Frequency-Dependent Electrical Transport Properties of 4,4′,4″-Tri(N-carbazolyl)-Triphenylamine Investigated by Impedance Spectroscopy

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Chinese Physics Letters 2011年第5期28卷 210-213页

作者： LI Bi-Xin CHEN Jiang-Shan ZHAO Yong-Biao ma dong-ge State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022 Graduate University of Chinese Academy of Sciences Beijing 100049

Frequency-dependent electrical transport properties of 4,4′,4″-tri(N-carbazolyl)-triphenylamine(TCTA)are analyzed by impedance spectroscopy(IS)as functions of bias and *** Cole-Cole plot shows a single semicircle which indicates that the equivalent circuit can be designed as a single parallel resistor R_(p)and capacitor C_(p)network with a series resistance R_(s).The bulk capacitance C_(p)remains unchanged while the resistance R_(p)decreases along with bias *** mechanism matches well with the space-charge-limited current(SCLC)model with exponential trap charge *** temperature-dependent impedance studies reveal the activation energy of 0.246eV with no phase change in the temperature range *** results indicate that the IS method is applicable for organic semiconductors having a wide band gap.

关键词： temperature impedance unchanged

High Current Transfer Ratio Organic Optocoupler Based on Tandem Organic Light-Emitting Diode as the Input Unit

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Chinese Physics Letters 2012年第11期29卷 115-118页

作者： YANG De-Zhi SUN Heng-Da CHEN Jiang-Shan ma dong-ge State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022

An organic optocoupler(OOC)is fabricated with a tandem organic light-emitting diode(OLED)as the light source(input unit)and an organic photodiode(OPD)as the detector(output unit).It is found that using the tandem OLED as the input unit can significantly increase the current transfer ratio of the organic *** the tandem OLED operates under 8 V and the OPD operates under-4 V,the current transfer ratio of the optocoupler reaches 5.4%.Simultaneously,the I_(ON)/I_(OFF) ratio of the optocoupler reaches 10^(5),which can be attributed to the small leakage current of the OPD,and the high efficiency of the OPD and the tandem OLED.

关键词： OLED diode attributed

High-Efficiency Phosphorescent White Organic Light-Emitting Diodes with Stable Emission Spectrum Based on RGB Separately Monochromatic Emission Layers

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Chinese Physics Letters 2014年第4期31卷 122-125页

作者： ZHANG Zhi-Qiang LIU Yi-Peng DAI Yan-Feng CHEN Jiang-Shan ma dong-ge ZHANG Hong-Mei State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied Chemistry Chan~chun 130022 University of Chinese Academy of Sciences Beijing 100049 Department of materials Science and Engineering Nanjing University of Posts and Telecommunications Nanjing 210023

Highly efficient phosphorescent white organic light-emitting diodes （WOLEDs） with stable emission spectra are successfully fabricated by using an RGB three-color separately monochromatic emission layer （EML） struc- ture. The EML consists of a sequence of bis（2-methyldibenzo[f, h]quinoxaline）（acetylacetonate） iridium （Ⅲ）（Ir（MDQ）2（acac）） doped tris（4-carbazoyl-9-ylphenyl）amine （TCTA） as the red emission layer, iridium, tris（2- phenylpyidine）（Ir（ppy）3） doped TCTA as the green emission layer and iridium（Ill） Ibis（4, 6-difuorophenyl）- pyridinato-N, C2＇]picolinate （FIrpic） doped a mixed-host of TCTA and tris（4-carbazoyl-9-ylphenyl）amine （26DCz PPy） as the blue emission layer. Without using any out-coupling techniques, the resulting WOLEDs achieve a power efficiency of 421m/W at lOO cd/m2, and 34 lm/W at 1000 cd/m2. The WOLEDs also show excellent spec- trum stability with bias voltages, remaining the Commission Internationale de L＇Eclairage coordinates at （0.44, 0.43） from 1000 cd/m2 to 10000 cd/m2 and the color rendering index is as high as over 80. We contribute the sta- ble emission spectrum to the RGB separate EML structure that successfully suppresses the undesired competition between host-guest energy transfer and direct exciton formation on emissive dopants by effectively controlling the position of exciton recombination region.

关键词： Layers High-Efficiency red emission

Bright Red Organic Electroluminescent Devices Based on a Soluble Rare Earth Complex Eu(TTA)_3 Phen

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Chemical Research in Chinese Universities 1998年第3期14卷 28-31页

作者： LI Bin ma dong ge ZHANG Hong jie ZHAO Xiao jiang NI Jia zuan FU Chun yan Laboratory of Rare Earth Chemistry and Physics Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun130022 Songliao River Valley Water Environmenta l Research Institute Changchun130021

An Electroluminescent device with PVK film doped with Eu(TTA) 3 Phen and PBD was fabricated. The device structure of glass substrate/indium tin oxide/PPV/PVK∶ Eu(TTA) 3 Phen∶PBD/Alq 3/Al was employed. A sharply... 详细信息

关键词： Electroluminescence Europium complex Red emission Doping

Synthesis and Characteristics of Hole-transporting materials Based on Biphenyl Diamine Derivatives with Carbazole Groups

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Chemical Research in Chinese Universities 2006年第5期22卷 647-650页

作者： ZHANG Qian CHEN Jiang-shan CHENG Yan-xiang WANG Li-xiang ma dong-ge JING Xia-bin WANG Fo-song Department of Chemistry Northeast Normal University Changchun 130024 P. R. China State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 P. R. China

Two hole-transporting materials containing carbazole moieties with TPD- and NPB-like structures, 4,4′-bis [ N- （4-carbazolylphenyl） -N-phenylamino ] biphenyl （ CPB ） and 4,4′-bis [ N- （ 4-carbazolylphenyl ） -N- （ 1-naphthyl ） amino] biphenyl（ CNB）, were synthesized via a modified Ullmann reaction. The resulting compounds were thermally stable with high glass transition temperatures ranging from 145 to 147 ℃ and possessed a good electrochemical reversibility and hole-transporting properties. Typical double-layer device evaluation with the structure ITO/CPB（40 nm）/ Alq3 （60 nm）/LiF/Al demonstrated that they were promising hole-transporting materials with a current efficiency of 5.25 cd/A and a power efficiency of 2.00 lm/W.

关键词： Electroluminescence Hole-transporting property Glass transition temperature

Photoluminescence and Electroluminescence of the Blue Emission of Devices Based on Poly (p-Phenylenevinylene) Copolymers

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Chinese Physics Letters 1996年第12期13卷 940-943页

作者： ma dong-ge HONG Zhi-yong ZHAO Xiao-jiang JING Xia-bin WANG Fo-song SHI Jia-wei LIU Ming-da JIN En-shun LI Shu-wen Changchun Institute of Applied Chemistry Chinese Academy of SciencesChangchun 130022 Department of Electronics Engineering Jilin UniversityChangchun 130023

Bright blue polymer light-emitting diodes have been fabricated by using the poly(pphenylenevinylene)-based copolymers with 10 C long aliphatic chains as the electroluminescent layers,PBD in PMma and Alq_(3) as the electron-transporting layers,and aluminum as the *** multilayer structure devices show 190cd/m^(2) light-emitting brightness at 460nm,15 V turn-on *** is found that the intensities of photoluminescence and electroluminescence(EL)increase with increasing aliphatic chain length,the EL intensity and operation stability of these polymer light-emitting diodes can be improved by reasonable design of the structure.

关键词： structure vinyl Copolymer

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论虎关师炼陶渊明“傲吏说”

陕西师范大学学报（哲学社会科学版） 2006年第3期35卷 28-34页

作者：马歌东陕西师范大学文学院陕西西安710062

日本五山时期著名诗僧虎关师炼在其所著《济北诗话》中,批评渊明之诗非“尽善尽美”,“不可言全才”,责备渊明之行“是为傲吏,岂大贤之举乎”。其论陶诗求全责备,已失之偏颇;论陶行“是为傲吏”、“非大贤矣”,尤为偏激之论。虎关之渊... 详细信息

日本五山时期著名诗僧虎关师炼在其所著《济北诗话》中,批评渊明之诗非“尽善尽美”,“不可言全才”,责备渊明之行“是为傲吏,岂大贤之举乎”。其论陶诗求全责备,已失之偏颇;论陶行“是为傲吏”、“非大贤矣”,尤为偏激之论。虎关之渊明“傲吏说”与中国儒家的出处进退观、中国传统的“傲吏”观乃至中国人的陶渊明观皆大相径庭。渊明“是为傲吏”与其自身“固穷节”的人生定位及其耿介傲然的性格特质有关。渊明诗文早在千余年前就已流传东瀛,深受日本人民爱敬,也曾给予日本汉诗以独特营养,虎关此说在日本学术史上只是偶见的一例。然而,因为民族性格、文化底蕴等方面的诸多差异,日本汉学者、汉诗人对渊明其人其诗的体悟与中国人相比有时终不免有一点儿“隔”。

关键词：日本诗话虎关师炼《济北诗话》陶渊明傲吏说

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《桃花源记》“外人”误读辩正

陕西师范大学学报（哲学社会科学版） 2007年第4期36卷 76-81页

作者：马歌东陕西师范大学文学院陕西西安710062

陶渊明《桃花源记》中“外人”一语三度出现,其中“男女衣著,悉如外人”之“外人”当是“外国人”或“方外人”的略称,然而长期以来被误读为“桃花源外面的人”。误读可归纳为四种情况:一、只是单纯误读“男女衣著,悉如外人”之“外人... 详细信息

陶渊明《桃花源记》中“外人”一语三度出现,其中“男女衣著,悉如外人”之“外人”当是“外国人”或“方外人”的略称,然而长期以来被误读为“桃花源外面的人”。误读可归纳为四种情况:一、只是单纯误读“男女衣著,悉如外人”之“外人”一语;二、对“外人”的误读造成《桃花源记》与《桃花源诗》的解读矛盾;三、对“外人”的误读使论文本身出现逻辑混乱;四、以对“外人”的误读为主要依据,构建“纪实说”或“虚构说”。《桃花源记》确实有纪实因素,也不排除有虚构痕迹,但是二者皆不应建立在对“外人”一语误读的基础上。

关键词：陶渊明《桃花源记》 “外人”